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A petroleum company was interested in comparing the miles per gallon achieved by four different gasoline blends (I, II, III, IV). Because there can be considerable variability due to differences in drivers and car models, these two extraneous sources of variability were included as blocking variables in the following Latin square design. Each driver drove each car model over a standard course with the assigned gasoline blend using a Latin square design. However, when driver 3 was operating a model 4 car using blend II gasoline, there was a malfunction of the car's carburator that invalidated the data. This malfunction was not discovered until well after the completion of the study, and hence the data could not be replaced. The miles per gallon data are given here.
a. Run an analysis of variance by estimating the missing value. Use a = .05.
b. Make treatment comparisons by using Fisher's least significant difference, with a = .05.
a wildlife study has found that a wolf pack is successful in killing one large animal for every 12 that it chases.a
One example of public health that I have witnessed firsthand during my clinical rotations in oncology is that of lung cancer caused by a patient history of smoking. During one research study that I was a part of we studied the numbers of lung cancer ..
a. one set of 20 pairs of scores x and y values produces a correlation of r0.70. if ssy 150 find the standard error of
Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 200 times and got 83 heads. How significant is this evidence against equal probabilities?
If he succeeds he will obtain 2000 US dollars. suppose that thief currently has 1500 US dollars in his pocket. Compute expected value of this undertaking.
A population has mean 325 and variance 144. Suppose the distribution of sample means is generated by random samples of size 36.
to calculate beta requires making a what if assumption about the true population parameter where the what-if value is
Test at 1% significance level that there exists a difference in proportion between men and women drivers who always use seat belts.
suppose a random variable x has density fx c x 3 if x equal or great than 10 else where c is a constant.a what is the
a company is studying the number of monthly absences among its 125 employees. the following probability distribution
the following data represent weights in pounds for two random samples of men of approximately 5 feet 10 inches tall and
a researcher is evaluating the effectiveness of a speed-reading course. a standardized test measuring both speed and
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